The Bohr model of the atom explained why emission spectra are discrete. It could also be used to explain the photoelectric effect. Which is a correct explanation of the photoelectric effect according to the model?
a) Electrons are emitted with more speed when brighter light strikes them.
b) Electrons need small amounts of energy to be released from an atom.
c) Electrons move between levels only if they are hit by the right frequency of light.
d) Electrons need specific amounts of energy to "jump" off an atom and be emitted.
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